Perhaps you should try some spelling variations:
"hoa trong code snippets" » "hoa trong cong snippets", "hoa trong co snippets", "hoa trong che snippets", "hoc trong code snippets", "dot trong code snippets", "hoa cong code snippets"
"locating bug core snippets" » "locating bug code snippets"
"using a java snippets" » "using _ java snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using a java snippets") or ("hoa trong code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a java snippets") OR ("hoa trong code snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using a java snippets ) or ( hoa trong code snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a java snippets") or ("hoa trong code snippets"))) or ("locating bug core snippets"))*.